The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 2005
Filed:
Aug. 08, 2002
Applicants:
Tero Jussila, Tampere, FI;
Jouko Niinimäki, Oulu, FI;
Inventors:
Tero Jussila, Tampere, FI;
Jouko Niinimäki, Oulu, FI;
Assignee:
Metso Paper, Inc., Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21D 502 ;
U.S. Cl.
CPC ...
Abstract
A method for controlling the quality of pulp. Pulp produced by mechanical defibering of wood is screened to provide at least two fractions, of which the accept that has passed the screening phase is carried forward for use and the reject that has not passed the screening is removed from the screening phase. The consistency of the reject that is to be removed from the screening is measured and the consistency value thus obtained is used for controlling the defibrator to adjust the quality of the accept.